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FAIR VALUE MEASUREMENTS (Contingent Consideration Liability) (Details) - USD ($) $ in Thousands | 6 Months Ended |
--- | --- | ---
Apr. 30, 2017 | Apr. 30, 2016 | Oct. 31, 2016
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Change in value of contingent consideration | $ 1,148 | $ 1,679 |
Liabilities [Abstract] |  |  |
Total liabilities | 19,671 |  | $ 18,881
Significant Unobservable Inputs (Level 3) [Member] |  |  |
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Opening balance, Liabilities | 18,881 |  |
Increase in accrued contingent consideration | 1,148 |  |
Change in value of contingent consideration | (250) |  |
Ending balance, Liabilities | 19,671 |  |
Liabilities [Abstract] |  |  |
Accrued Liabilities, Current | 6,944 |  |
Other Liabilities, Noncurrent | 12,727 |  |
Total liabilities | 19,671 |  | $ 18,881
Foreign Currency Gain (Loss) [Member] | Significant Unobservable Inputs (Level 3) [Member] |  |  |
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Foreign currency transaction adjustments | $ (108) |  |

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- Definition Amount of increase (decrease) in the value of a contingent consideration liability, including, but not limited to, differences arising upon settlement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 4 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e7008-128479 + Details
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- Definition Amount of liability recognized arising from contingent consideration in a business combination. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 35 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6911338&loc=d3e6819-128478 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 25 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6911189&loc=d3e6408-128476 + Details
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